Four-layer planter box



FIG. 1 is a front perspective view of a third layer planter showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a vertical sectional view along lines 7--7 in FIG. 5. 

The ornamental design for a four-layer planter box, as shown. 